With four number one singles from ‘Teenage Dream’ — ‘Firework,’ ‘E.T.,’ ‘California Gurls,’ and the title track — Katy’s one hit away from reaching Michael Jackson’s record for most chart-toppers from an album — and her latest single, ‘Last Friday Night (TGIF),’ is poised to take her the rest of the way.

Cher’s musical career has been fairly low profile since she scored a massive late ’90s hit with ‘Believe,’ but her influence continues to be felt in the larger-than-life style of many younger artists — including Lady Gaga, who’s planning to acknowledge that debt with a duet that just might melt the dance floor.

They’re teaming up to record ‘The Greatest Thing,’ a song Gaga offered Cher for her upcoming album.

Turns out that aside from his budding career as a film star — which is soaring as he takes a hiatus from his career as a multiplatinum recording artist — Justin Timberlake is also working with Specific Media, the company that just picked up MySpace for $35 million in cash and equity (a steep drop from the $580 million that Fox paid in 2005).

Selena Gomez and Taylor Swift lead the pack, with five and six nominations, respectively. Other stars boasting multiple nods — drawn across the pop culture spectrum, including movies, music, television, fashion, and sports — are Justin Bieber, Adele, Lady Gaga, and Eminem.

Take a look at the list of music nominees below, then read the full list at the Teen Choice Awards website — and mark your calendar for August 7, when this year’s winners will be announced.

Ah, Prince. Whether he’s changing his name to a symbol, scrawling slogans on his face, threatening to sue his fans, or publicly daydreaming about a world in which no one is allowed to cover his songs, he’s always good for a provocative quote or two.

Before they were judges on NBC’s hit singing competition series ‘The Voice,’ Adam Levine and Christina Aguilera were chart-topping singers — and they teamed up to return to their roots Tuesday night, with a performance of their collaborative new single, ‘Moves Like Jagger.’

Maroon 5 took the stage first, with Levine fronting the band for the first half of the uptempo song, before Aguilera — wearing a low-cut T-shirt emblazoned with ‘BOYS’ and sporting pink streaks in her hair — strutted on to join them for the big finish.

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